Formula for the n-th term . Sequence Question

Hi, I am new to this forum and I am also very new to math. I failed math in high school so my understanding of algebra is very weak. Even so, I would like to learn so please bare with me if I am being a nuisance.

Question

Find formula, showing all the work for the n-th term tn of the sequence (tn) . Defined with

Re: Formula for the n-th term . Sequence Question

Originally Posted by RedGuitar

Sorry actually I am a bit lost
If t1 = 8; and tn = (5*tn-1) /2
Then t3 = (5*20)/2 = 50
But using the n-th term mentioned wont it be
t(3) = 8*5^n-1
= 8*5^2
= 8*25
= 400
I am very new to this, so I'm sorry if i misunderstood you somewhere

Your confusion results from your inability to post clearly what you mean.